Best Side-Sleeper Mattresses 2026: Picked by a Sleep Science Coach

MattressMattress typeMaterialsFirmnessHeightCertificationsTrial PeriodShippingWarrantyNolah EvolutionHybridOrganic cotton or GlacioTex cover, AirFoam Luxe memory foams, gel memory foam, AirBreath border gusset, pocketed coilsPlush, luxury firm, firm15 inchesCertiPur-US, GreenGuard Gold120 nights; 30-day break in period required before initiating return ($99 shipping fee)Arrives in a box as part of standard shipping; white-glove delivery available (mattress setup and old bed removal) for $225Limited lifetimeHelix Midnight LuxeHybridTencel cover, memory foams, pocketed coilsOne option is 6.5/1013.5 inchesCertiPur-US, GreenGuard Gold120 nights; 30-day break-in period required before initiating returnFree for customers in the contiguous USLimited lifetimeBear Elite HybridHybridPhase change material (PCM) cooling cover, copper-infused memory foam, dynamic memory foam, pocketed coilsSoft, medium, firm14 inchesCertiPur-US, GreenGuard Gold120 nights; 30-day break-in period required before initiating returnFree for customers in the contiguous USLimited lifetimeLeesa Sapira ChillHybridPhase change cooling cover, cooling memory foams, pocketed coilsPlush, medium firm, firm14 inchesCertiPur-US, GreenGuard Gold120 nights; 30-day break-in period required before initiating returnFree for customers in the contiguous USLimited lifetimeNaturepedic EOS ClassicHybridOrganic cotton cover, plant-based PLA layer, organic wool batting, organic latex, organic cotton batting, organic cotton fill and fabric, pocketed coilsPlush, medium, cushion firm, firm, extra firm (each side can have different firmnesses)12 inchesGlobal Organic Latex Standard (GOLS), Global Organic Textile Standard (GOTS), Made Safe, EWG verified, GreenGuard Gold, Formaldehyde-Free Claim Verified by UL Environment, Organic Content Standard certified, Organic Trade Association certified, Responsible Wool Standard Certified, Forest Stewardship Council certified100 nights; 30 day break in period required before initiating returnArrives in a box as part of standard shipping. For contiguous US shoppers, mattress setup is $299; setup and old bed removal is $34925-year limitedSaatva Contour5Memory foamCotton cover, memory foamMedium, firm12.5 inchesCertiPur-US, GreenGuard GoldYear long sleep trial; $99 return feeWhite glove delivery included with purchaseLifetimeCasper Dream HybriidMemory foam hybridKnit cover, memory foam, zoned memory foam, pocketed coils, foam rail edge supportMedium firm12 inchesCertiPur-US100 nightsArrives in box as part of standard shipping; separate shipping fee for Alaska and Hawaii10 year limitedBirch Luxe NaturalHybridOrganic cotton cover, wool, organic latex, pocketed coilsMedium11.5 inchesGlobal Organic Latex Standard (GOLS), GreenGuard Gold120 nights; 30-day break in period required before initiating return ($99 shipping fee)Arrives in a box as part of standard shipping; white-glove delivery available for $199Limited lifetimeThe WinkBedHybridTencel cover, gel memory foam, pocketed coilsSofter, luxury firm, firm, Plus13.5 inchesCertiPur-US120 nights; 30-day break in period required before initialing returnFree shipping via UPS ground for contiguous U.S.Limited lifetimeWolf Memory Foam Hybrid Premium Firm MattressHybridCooling cover, gel memory foam, support foam, pocketed coilsMedium firm13 inchesCertiPur-US101 nights; 30-day break in period required before initiating returnArrives in a box as part of standard shippingLimited lifetimeSaatva RxHybridOrganic cotton cover, lumbar support layer, graphite- and phase change material-infused foam, high-density memory foam, micro coils, pocketed coils, plant-based fire barrierSupportive Plush, 3.5/1015 inchesCertiPur-US, GreenGuard Gold365 nights, return fee is $99White glove delivery included with purchaseLifetimePersonal Comfort The RejuvenateSmart bedPhase change cooling cover, copper gel memory foam, support foam, Ultra-Flex air chambers, rail system, comfort foam, bottom cover, air control unit45 firmness levels13 inchesCertiPur-US120 nightsArrives in a box as part of standard shipping5 years full coverage, 20 years prorated coverage